There are many specific causes of dense small particles on the upper lip. The common ones are fatty grains, acne, sebaceous gland ectopia, labyrinthitis, herpes, etc. Further examination is needed to clarify the specific causes and choose a reasonable treatment plan according to the different types and clinical manifestations. 1, fatty grains: fatty grains are generally referred to as milia, uneven distribution of skin oils on the upper lip, excess nutrients in the body, and skin care products that are not completely absorbed into the skin, etc., may cause the upper lip to rise The dense small particles. This situation generally does not require special treatment, usually you can pay attention to eat less greasy, too sweet, spicy food, while paying attention to local skin cleaning, will slowly improve; 2, acne: if the upper lip lip red edge of the dense small particles, may be acne, pimples, etc., mainly due to skin cleaning is not in place, resulting in local pore blockage and caused, pay attention to the local skin cleaning It is important to pay attention to local skin cleaning and hydration; 3. Sebaceous gland ectopia: a proliferative lesion due to the physiological variation of the sebaceous gland, which may be related to the patient’s own abnormal hormone level. If it affects the beauty of the patient insists on removing it, you can go to a professional medical institution for laser treatment; 4, lipitis: lipitis is generally caused by improper diet or improper use of lip balm causing allergies, this situation should be promptly removed allergic factors, in serious cases with the use of anti-allergic cream or oral anti-allergic The actual allergy is usually caused by improper diet or improper use of lip balm. In addition, lip infection may also be caused by bacterial infection, you can use erythromycin ointment and other anti-infection treatment; 5, herpes: the upper lip is infected by the herpes simplex virus will also appear dense small particles, oral lip herpes is generally self-limiting, you can also follow medical advice to use drugs, such as acyclovir and other antiviral treatment.